Prelim Examination

Question 1

We define a __________ as the collection of all responses, measurements, or counts that are of interest

Answer 1

Population

Question 2

__________ is a just a subset of a population. Since we cannot get the whole population to respond, we are using _______ to get a statement about a population

Answer 2

Sample

Question 3

Any method of selecting a sample that utilizes a random sample.

Answer 3

Probabilistic Sampling
Techniques

Question 4

The sample size of each stratum in this technique is proportionate to the population size of the stratum when viewed against the entire population.

Answer 4

Proportionate Stratified Random Sampling

Question 5

Researchers select groups or clusters, and then from each cluster, the researcher selects the individual subjects by either simple random or systematic random sampling.

Answer 5

Cluster Sampling

Question 6

A sampling technique in which the members of the population are not given an equal chance in the selection of the sample.

Answer 6

Nonprobability Sampling
Techniques

Question 7

Choosing a sample based on the previous knowledge of the population and the specific purpose of the study or investigation.

Answer 7

Purposive Sampling

Question 8

It is the process of selecting a sample based on the convenience of the investigator

Answer 8

Convinience Sampling

Question 9

3 Main measures of Central Tendency

Answer 9

MEAN
MEDIAN
MODE

Question 10

It can be used for ungrouped
and grouped data

Answer 10

Measure of central tendency

Question 11

This is the sum of all data values divided by the number of values

Answer 11

Mean

Question 12

The point at which an equal number of values fall above and fall below

Answer 12

Median

Question 13

The value with the highest frequency

Answer 13

Mode

Question 14

Sort data in order
0 2 2 2 3 4 4 6 40

Identify the median and mode?

Answer 14

The middle value is 3, so the median is 3

The mode is 2 since it occurs the most times

Question 15

Sort Data in order
0 2 2 2 3 4 4 6

Identify the median and mode

Answer 15

The middle values are 2 and 3, so the median is 2.5

The mode is 2 since it occurs the most

Question 16

In quantitative research and data analysis, __________ refers to the count or number of times a particular value or category appears in a dataset.

Answer 16

Frequency

Question 17

How to make a frequency distribution?

Answer 17

Identidy the key values (LOWEST VALUE & HIGHEST VALUE)

Determine the number of classes (Given)
Example: 5

Example the Highest value is 125 and the lowest is 67

Calculate the width:

Highest Value - Lowest Value / number of classes

125 - 67 / 5 = 11.6 -> round up to 12

Question 18

What is Tally Frequency?

Answer 18

It is the (FREQUENCY) number of students that got the score of 67 - 78. Example is there are 3 students that got 67-78 points in the exam, the Tally is 3

basta yung guhit guhit kingina

Question 19

Formula of midpoint

Answer 19

(Lower Limit + Upper Limit) / 2

Question 20

Formula of relative frequency

Answer 20

Frequency / Total Frequency

Question 21

Formula of Cumulative Frequency

Answer 21

Number of values in that class or in the lower one

(Get the first frequency then add it to the frequency below and so on)

Question 22

Formula of Class Boundaries

Answer 22

(Lower Limit - 0.5) - (Upper Limit + 0.5)